dem4570,
Using the Knight Balllistic Guide, a 90gr. charge with your 240gr. bullet will give you 1242fp @ the muzzle and 963fp @ 100yds. The general rule of thumb is 1,000fp of energy, but bullet placement trumps it in my book.
You may want to try someTriple 7 powder, it'll cost you a little more $$, but I heard that money was no problem for you LOL